About Codeteck Tools
A free, no-nonsense collection of developer tools for DNS, networking, security, and web development. No sign-up. No tracking. No ads. Just tools.
What is this?
Codeteck Tools is a collection of 27 free tools built for developers, sysadmins, and anyone who needs quick answers about DNS records, SSL certificates, HTTP headers, IP addresses, and more.
Client-side tools (Base64, JSON Formatter, Hash Generator, etc.) run entirely in your browser — nothing leaves your device. Server-side tools (DNS Lookup, SSL Checker, etc.) make requests from the server so they work regardless of your network or browser restrictions.
All API endpoints are public and rate-limited. See the API documentation for details.
Principles
Private
No analytics, no cookies, no fingerprinting. Client-side tools never send your data anywhere.
Fast
Results are cached server-side. Most tools respond in under 500 ms.
Free
No tiers, no limits beyond rate limiting, no account required — ever.
Secure
SSRF protection on all server-side tools. Strict security headers. HTTPS everywhere.